The researchers then put mice injected with ghrelin and control mice through a maze and other intelligence tests. In each case, the biochemically âhungryâ mice â mice infused with ghrelin â performed notably better than those with normal levels of the hormone. The finding was startling, but âit makes sense,â Horvath says. âWhen you are hungry, you need to focus your entire system on finding food in the environment.â In fact, some biologists believe that human intelligence itself evolved because it made early hominids more effective hunters, gathers and foragers.
TeleTax: 1-800-829-4477 - Has recorded tax information and automated refund information. call this number if you just want to hear information and not talk to a person. IRS Business Assistance: 1-800-829-4933 - Call this number if you want to talk to an agent about your business, not your personal taxes.
What is the 1-800 number for the IRS? Below is a list of phone numbers for the Internal Revenue Service. IRS Tax Help Line for Individuals: (800) 829-1040. Hours: MondayâFriday, 7:00 a.m.â7:00 p.m., local time.